Subsea Spreads & Life Support
Synergy-built containerized dive control spreads, ABS-certified decompression chambers, and IMCA-compliant launch systems engineered for zero-compromise safety.
Assets
Containerized Dive Control Spread
Synergy-built 10ft containerized dive control station, fully insulated and climate-controlled, integrating a Bureau Veritas approved three-diver air panel and synchronized CCTV monitoring.
Rating / Pressure
LP 300psi / HP 3000psi (design) | LP 330psi / HP 3300psi (test)
Dry Weight
6.0 tonnes
Class
BV / ISO Certified & IMCA Compliant
Build Class
Synergy Group Class Build
Deck Decompression Chamber (DDC)
ABS-approved, ASME-PVHO compliant twin-lock deck decompression chamber rated to 100m, engineered for critical in-water recompression and surface decompression.
Rating / Pressure
Rated Working Depth: 100metres (334fsw)
Dry Weight
2,760kg (empty)
3,000kg (fully fitted out)
Class
ABS Approved & ASME-PVHO Compliant
Build Class
ABS Surveyed & Witnessed Construction
LARS Twin Basket System
IMCA-compliant Launch and Recovery System (LARS) designed to safely launch and recover commercial divers in deep-water and high-current portals.
Rating / Pressure
4.1m
Dry Weight
Main Dive Cage: 950kg
Standby Dive Cage: 650kg (380kg dry without cylinders)
Class
IMCA Compliant LARS
Build Class
Class Certified Array
Nuvair NITROX Container
Nuvair containerized membrane system providing highly efficient, continuous Nitrox gas delivery for offshore diving operations.
Rating / Pressure
Dry Weight
Membrane System: 382kg
Total Container: 2.0tonnes
Class
Containerized Gas Production
Build Class
Certified 2024 (Conformity complied 26 August 2024)
Hyperbaric Systems & Life Support
Subsea construction requires strict, redundant environmental controls. Commercial Marine Group’s life support spreads integrate advanced pressure engineering, state-of-the-art monitoring, and rapid decompression systems to keep crews safe in high-risk zones.
Synergy Containerized Control
We operate modular 10ft containerized dive spreads featuring dual-stage pressure manifolds, continuous audio-video logging, and UPS backup power systems.
ABS Decompression Chambers
Our twin-lock decompression chambers conform strictly to ASME-PVHO standards, allowing on-site surface decompression and emergency recompression treatments up to 100m.
IMCA & AS 2299.1 Compliance
Every piece of life-support equipment undergoes regular pressure testing, FMEA analysis, and certification to satisfy both national and international maritime standards.
Frequently Asked Questions
Technical insights regarding our containerized dive spreads, gas manifolds, and decompression systems.
How does Commercial Marine Group's containerized dive control system ensure diver safety in active shipping channels?
Our Synergy-built 10ft containerized dive control system serves as the central command hub for our subsea operations. It features a Bureau Veritas-approved three-diver air control panel and integrated CCTV video arrays. To manage risks in busy ports, the station is equipped with active Dynamic Positioning (DP) vessel alarms. These alarms notify our supervisor immediately if the dive support vessel drifts, allowing them to coordinate emergency dive recalls via the hardwired diver communication system before any umbilical lines are stressed.
What technical parameters are verified on our ABS-approved Deck Decompression Chamber (DDC)?
Our DDC is designed and built to the highest global safety standards, holding formal ASME-PVHO certification with a U-stamp. It features a twin-lock layout with a 1500mm inner diameter, capable of treating two recumbent patients or four seated occupants. The control console incorporates a calibrated oxygen analyzer, dual high-precision depth gauges, and therapeutic breathing gas controls. Construction materials, including the pressure vessel welds and stainless steel wear surfaces, are witnessed and approved by ABS surveyors to guarantee structural integrity down to 100m equivalent depths.
How are low-pressure and high-pressure gas systems regulated within the Commercial Marine Group dive control station?
The dive station manages gas through dual-line high-pressure (HP) and low-pressure (LP) manifolds. Our primary air supply is delivered via low-pressure compressors rated to 300 psi. In the event of a compressor failure, the manifold automatically switches to the high-pressure reserve bank, which stores breathing air at 3000 psi across a 12-cylinder manifold. High-flow regulators step this pressure down safely, ensuring a constant, stable volume of air is delivered to the divers’ helmets in accordance with IMCA D018/D023 criteria.
What safety systems are integrated into the chamber to prevent fire hazards in high-oxygen environments?
Decompression chambers often operate with elevated oxygen levels, which increases fire risks. Our DDCs are designed with multiple safety features to mitigate this, including hyperbaric-rated fire extinguishers, completely non-sparking sound-powered communication systems, and high-quality stainless steel interior fittings. Additionally, our breathing systems utilize closed-circuit overboard dump masks, which vent the patient’s exhaled oxygen directly outside the chamber to keep internal oxygen levels safely below the critical 23% threshold.
How are voice communications and diver video logs synchronized during deep civil inspections?
Clear, uninterrupted communication is vital during complex subsea inspections. Our containerized dive spreads integrate a multi-channel digital audio-video matrix. This system records synchronized high-definition video from three diver-mounted cameras and deck cameras alongside clear surface-to-diver intercom audio. The entire control station is backed up by an onboard Uninterruptible Power Supply (UPS) that keeps all communication, lighting, and recording systems running smoothly even if the main generator loses power.